Kerastase Resistance Bain De Force shampoo helps to repair and reconstruct dry, damaged, and brittle hair. The enforcements are brought in through Kerastase's Complexe Vita-Ciment technology, which brings together pro-keratin, resurrection sap, and ceramides to work damaged hair over and getting looking and feeling its best again. Pro-keratin does the same job as keratin, smoothing and rebuilding the hair. Resurrection sap goes to town on the scalp and hair fibers with its regenerating action, and ceramides work from the inside out recreating intercellular cement and strengthening each hair fiber. Each application includes using a small amount of Kerastase Resistance Bain De Force shampoo and lathering and massaging it into the scalp, rinsing, and then styling as normal. After the gentle cleanse and hair styling you will have noticeable differences--hair will be soft, supple, and volumized. As you run your fingers through your hair, you can also feel the difference. Don't go another day with dry, brittle, or troubled hair when you can have healthier, more manageable hair after just one wash.